Question

A spherical solid ball of volume V is made of:
material of density pa. It is falling through a ligu
of density P2 (P2 > Py). Assume that the ligu
applies a viscous force on the ball such tha
F =-kv, then the terminal speed of the ball is
(1)
Vg(2,-22)
K
(2)
Vg (P1-P2)
k k
(3)
Vog
k
VP29
(4)
k
wer. B. Pin​

Answer 1

Answer:

இ வில் நோட் அன்சர் திஸ்

Answer 2

The condition for terminal speed (v

t

) is Weight = Buoyant force + Viscous force

W=Vρ

1

g

Vρ

1

g=Vρ

2

g+kv

t

2

v

t

=

k

Vg(ρ

1

−ρ

2

)

if u don't understand this just check th pinned image ✌️